How soon could Iran have a nuclear weapon?(1:39)

Video - Breaking News Videos from CNN.com#/video/world/2007/04/10/meserve.how.close.is.iran.ap#/video/world/2007/04/10/meserve.how.close.is.iran.ap#/video/world/2007/04/10/meserve.how.close.is.iran.ap: "Iran's nuclear timetable 1:39 How soon could Iran have a nuclear weapon? CNN's Jeanne Meserve takes a look"